import Vue from 'vue'
import VueRouter from 'vue-router'
const Login = () => import( /* webpackChunkName: "Login_home_welcome" */ '@/components/Login.vue')
const Home = () => import( /* webpackChunkName: "Login_home_welcome" */ '@/components/Home.vue')
const Welcome = () => import( /* webpackChunkName: "Login_home_welcome" */ '@/components/Welcome.vue')
const Aside = () => import( /* webpackChunkName: "Login_home_welcome" */ '../components/Aside.vue')

const Users = () => import( /* webpackChunkName: "Users_Rights_Roles" */ '@/components/user/Users.vue')
const Rights = () => import( /* webpackChunkName: "Users_Rights_Roles" */ '@/components/power/Rights.vue')
const Roles = () => import( /* webpackChunkName: "Users_Rights_Roles" */ '@/components/power/Roles.vue')

const Cate = () => import( /* webpackChunkName: "Cate_Params" */ '@/components/goods/Params.vue')
const Params = () => import( /* webpackChunkName: "Cate_Params" */ '@/components/goods/Params.vue')

const Add = () => import( /* webpackChunkName: "GoodsList_Add" */ '@/components/goods/List.vue')
const List = () => import( /* webpackChunkName: "GoodsList_Add" */ '@/components/goods/List.vue')

const Order = () => import( /* webpackChunkName: "Order_Report" */ '@/components/order/Order.vue')
const Report = () => import( /* webpackChunkName: "Order_Report" */ '@/components/report/Report.vue')




Vue.use(VueRouter)

const routes = [{
    path: '/',
    redirect: '/login'

  },
  {
    path: '/login',
    component: Login
  },
  {
    path: '/home',
    component: Home,
    redirect: 'welcome',
    children: [{
        path: '/welcome',
        component: Welcome
      },
      {
        path: '/users',
        component: Users
      },
      {
        path: '/rights',
        component: Rights
      },
      {
        path: '/roles',
        component: Roles
      },
      {
        path: '/categories',
        component: Cate
      },
      {
        path: '/params',
        component: Params
      },
      {
        path: '/goods',
        component: List
      },
      {
        path: '/goods/add',
        component: Add
      },
      {
        path: '/orders',
        component: Order
      },
      {
        path: '/reports',
        component: Report
      },
    ]
  },
  {
    path: '/aside',
    component: Aside
  },


]


const router = new VueRouter({
  routes
})

//挂载路由导航守卫
router.beforeEach((to, form, next) => {
  // to 将要访问的路径
  // from 代表从哪个路径跳转而来
  // next 是一个函数，表示放行
  //      next()  放行    next('/login')  强制跳转 
  if (to.path === '/login') return next()
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})

export default router
